Recombinant Human Metalloreductase STEAP3 (STEAP3)

Code CSB-CF717655HU
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Source in vitro E.coli expression system
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Product Details

Target Names
Uniprot No.
Alternative Names
STEAP3; TSAP6; Metalloreductase STEAP3; Dudulin-2; Six-transmembrane epithelial antigen of prostate 3; Tumor suppressor-activated pathway protein 6; hTSAP6; pHyde; hpHyde
Homo sapiens (Human)
Expression Region
Target Protein Sequence
Protein Length
full length protein
Tag Info
Tag type will be determined during the manufacturing process.
The tag type will be determined during production process. If you have specified tag type, please tell us and we will develop the specified tag preferentially.
Lyophilized powder
Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.
Buffer before Lyophilization
Tris/PBS-based buffer, 6% Trehalose, pH 8.0
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20℃/-80℃. Our default final concentration of glycerol is 50%. Customers could use it as reference.
Troubleshooting and FAQs
Storage Condition
Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Shelf Life
The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
Lead Time
Delivery time may differ from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
Note: All of our proteins are default shipped with normal blue ice packs, if you request to ship with dry ice, please communicate with us in advance and extra fees will be charged.
Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Please contact us to get it.

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Target Background

Endosomal ferrireductase required for efficient transferrin-dependent iron uptake in erythroid cells. Participates in erythroid iron homeostasis by reducing Fe(3+) to Fe(2+). Can also reduce of Cu(2+) to Cu(1+), suggesting that it participates in copper homeostasis. Uses NADP(+) as acceptor. May play a role downstream of p53/TP53 to interface apoptosis and cell cycle progression. Indirectly involved in exosome secretion by facilitating the secretion of proteins such as TCTP.
Gene References into Functions
  1. In hepatocellular carcinoma (HCC), lower expression of the STEAP3 copper reductase and heavy Cu isotope enrichment have been reported for the tumor mass, relative to the surrounding tissue PMID: 28303916
  2. TSAP6 over expression is associated with poor survival in metastatic high-grade serous carcinoma. PMID: 27825812
  3. heterozygous STEAP3 mutations are relatively common in humans and that their deleterious effect in humans remains to be confirmed PMID: 26675350
  4. TSAP6 is a target of rhomboid protease RHBDD1-induced proteolysis. PMID: 22624035
  5. findings indicate that STEAP3 maintains iron storage in human malignant cells and tumor proliferation under the hypoferric condition PMID: 21871451
  6. TSAP6 may augment Myt1 activity and act downstream to p53 to interface apoptosis and cell-cycle progression PMID: 12606722
  7. role for TSAP6 in the export of TCTP and indicate that this multipass membrane protein could have a general role in the regulation of vesicular trafficking and secretion. PMID: 15319436
  8. The crystal structure of the human Steap3 oxidoreductase domain in the absence and presence of NADPH was determined. PMID: 18495927
  9. Down-regulated expression of the TSAP6 protein in liver is associated with a transition from cirrhosis to hepatocellular carcinoma PMID: 19236508

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Involvement in disease
Anemia, hypochromic microcytic, with iron overload 2 (AHMIO2)
Subcellular Location
Endosome membrane; Multi-pass membrane protein. Note=Localizes to vesicular-like structures at the plasma membrane and around the nucleus.
Protein Families
STEAP family
Tissue Specificity
Expressed in adult bone marrow, placenta, liver, skeletal muscle and pancreas. Down-regulated in hepatocellular carcinoma.
Database Links

HGNC: 24592

OMIM: 609671

KEGG: hsa:55240

STRING: 9606.ENSP00000376822

UniGene: Hs.647822

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